git: c9254546682c - main - stress2: Added another fsck_ffs test scenario

The branch main has been updated by pho:

URL: https://cgit.FreeBSD.org/src/commit/?id=c9254546682c51ed4b97e64c5f41d9ec98c2e053

commit c9254546682c51ed4b97e64c5f41d9ec98c2e053
Author:     Peter Holm <pho@FreeBSD.org>
AuthorDate: 2022-08-07 08:37:17 +0000
Commit:     Peter Holm <pho@FreeBSD.org>
CommitDate: 2022-08-07 08:37:17 +0000

    stress2: Added another fsck_ffs test scenario
---
 tools/test/stress2/misc/fsck9.sh | 160 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 160 insertions(+)

diff --git a/tools/test/stress2/misc/fsck9.sh b/tools/test/stress2/misc/fsck9.sh
new file mode 100755
index 000000000000..0297013839eb
--- /dev/null
+++ b/tools/test/stress2/misc/fsck9.sh
@@ -0,0 +1,160 @@
+#!/bin/sh
+
+#
+# SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+#
+# Copyright (c) 2022 Peter Holm <pho@FreeBSD.org>
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+# fsck_ffs(8) false CLEAN claim scenario
+
+# https://people.freebsd.org/~pho/fsck9.sh.diskimage.20220716T150359.txt
+# https://people.freebsd.org/~pho/fsck9.sh.diskimage.20220716T150359.gz
+
+# https://people.freebsd.org/~pho/fsck9.sh.diskimage.20220716T172428.txt
+# https://people.freebsd.org/~pho/fsck9.sh.diskimage.20220716T172428.gz
+
+. ../default.cfg
+
+[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
+
+cc -o /tmp/flip -Wall -Wextra -O2 ../tools/flip.c || exit 1
+
+set -e
+u1=$mdstart
+u2=$((mdstart + 1))
+mp1=${mntpoint}$u1
+mp2=${mntpoint}$u2
+mkdir -p $mp1 $mp2
+log=$mp1/fsck9.sh.log
+diskimage=$mp1/fsck9.sh.diskimage
+backup=/tmp/fsck9.sh.diskimage.`date +%Y%m%dT%H%M%S`.gz
+cleans=0
+reruns=0
+
+max=$((10 * 1024 * 1024))
+newfs_flags='-U'
+
+mount | grep "on $mp1 " | grep -q /dev/md && umount -f $mp1
+[ -c /dev/md$u1 ] && mdconfig -d -u $u1
+mdconfig -a -t swap -s 1g -u $u1
+newfs $newfs_flags -n /dev/md$u1 > /dev/null
+mount /dev/md$u1 $mp1
+
+[ -c /dev/md$u2 ] && mdconfig -d -u $u2
+dd if=/dev/zero of=$diskimage bs=$max count=1 status=none
+mdconfig -a -t vnode -f $diskimage -u $u2
+backups=`newfs -N $newfs_flags md$u2 | grep -A1 "super-block backups" | \
+    tail -1 | sed 's/,//g'`
+newfs $newfs_flags -n md$u2 > /dev/null
+mount /dev/md$u2 $mp2
+[ -d /usr/include/sys ] && cp -r /usr/include/sys $mp2
+umount $mp2
+set +e
+
+chk() {
+	local i
+
+	clean=0
+	rerun=0
+	fsck_ffs -fy $1 > $log 2>&1
+	r=$?
+	if grep -qE "Cannot find file system superblock|Superblock check-hash failed" $log; then
+		for b in $backups; do
+			fsck_ffs -b $b -fy $1 > $log 2>&1
+			r=$?
+			grep -qE "Cannot find file system superblock|Superblock check-hash failed" $log ||
+			   break
+		done
+		usedasb=1
+	else
+		usedasb=0
+	fi
+	LANG=C egrep -q "[A-Z][A-Z]" $log && clean=0
+	grep -Eq "IS CLEAN|MARKED CLEAN" $log && clean=1
+	grep -q RERUN $log && rerun=1
+	[ $r -ne 0 -a $clean -eq 1 ] && echo "Exit code $r w/ clean == 1"
+}
+
+cd $mp1
+clean=0
+s=0
+start=`date +%s`
+while [ $((`date +%s` - start)) -lt 300 ]; do
+	mount /dev/md$u2 $mp2 || { s=101; break; }
+	ls -lR $mp2 > /dev/null || { s=102; echo "ls failed"; break; }
+	touch $mp2/`jot -rc 8 a z | tr -d '\n'`
+	while mount | grep -q "on $mp2 "; do umount $mp2; done
+	echo * | grep -q core && break
+	sync
+	mdconfig -d -u $u2
+	/tmp/flip -n 5 $diskimage
+
+	sync
+	if [ `stat -f%z $diskimage` -gt $max ]; then
+		ls -lh $diskimage
+		truncate -s $max $diskimage
+	else
+		gzip < $diskimage > $backup
+	fi
+	fsync $backup
+
+	for i in `jot 5`; do
+		[ $i -gt 2 ] && echo "fsck run #$i"
+		chk $diskimage
+		[ $rerun -eq 1 ] && { reruns=$((reruns + 1)); continue; }
+		[ $clean -eq 1 ] && { cleans=$((cleans + 1)); break; }
+		[ -f fsck_ffs.core ] && break 2
+	done
+	if [ $clean -eq 1 ]; then
+#		echo "Checking clean claim"
+		fsck_ffs -fy $diskimage > $log 2>&1
+		if grep -q MODIFIED $log; then
+			echo "fsck of "clean" FS found more issues:"
+			cat $log
+			s=1
+			break
+		fi
+	fi
+	[ $clean -ne 1 ] && break
+	mdconfig -a -t vnode -f $diskimage -u $u2
+done
+sleep 2	# Wait for /dev to catch up
+[ -c /dev/md$u2 ] && r1=1 || r1=0
+for i in `jot 5`; do
+	mount | grep -q "on $mp2 " || break
+	umount $mp2 && break
+	sleep 2
+done
+mdconfig -d -u $u2 2>/dev/null # XXX when mount fails
+
+[ $s -eq 0 ] && rm -f $backup
+cd /tmp
+for i in `jot 5`; do
+	umount $mp1 && break
+	sleep 2
+done
+mdconfig -d -u $u1
+rm -f /tmp/flip
+exit $s